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Added containsHandler to events.nim

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Amrykid
2011-12-29 08:23:43 -06:00
parent f0f904ac70
commit d456672408
1 changed files with 5 additions and 0 deletions
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5
lib/pure/events.nim
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@@ -57,6 +57,11 @@ proc removeHandler*(handler: var TEventHandler, func: proc(e: TEventArgs)) =
handler.handlers.del(i)
break
proc containsHandler*(handler: var TEventHandler, func: proc(e: TEventArgs)): bool =
## Checks if a callback is registered to this event handler.
return handler.handlers.contains(func)
proc clearHandlers*(handler: var TEventHandler) =
## Clears all of the callbacks from the event handler.
setLen(handler.handlers, 0)